Hey guys, 1993 Mazda Rx7 fd3s, The temp in the area is about 5-9 degress celsious.
The other day i was driving my car the usual way, a little hard but not bagging it, not redlining etc etc.

Im at the red light and out of no were the idle drops down to 3-400rpms (way to low) and the car starts to shake, i thought it was gonna stall out but it didnt, the light turned green and i gave it a little gas and the throttle response was a little late and the car was lagging a bit, once i got up to about 1500rpm the car started moving normal, i tested it a bit and i didnt loose any power, the car just idle'ed really low at stand still!!

SO i went home and i was sitting in my car listening for problems while my turbo timer was counting down, and the car was still idle'ing low
Then it just stalled out, i turned it back on immediatly and it hasent stalled out agin since but still idle's low as hell.

I lifted the hood while the Timer was counting down again and i could hear a hissing noise coming from the area around the block. My freind thinks it would be the vac hoses.... Im not sure what to think.
Once the car shuts off however the hissing stops.



Anyone had this problem?
Thnx guys


P.S I traded vehicles with my freind the other day for a day or 2 and he put a small amount of 10w 30 oil in it, i know it takes 5w 30 but he didnt know.

 

Find and fix your air leak/leaks, and remove that useless turbo timer.
Then wory about the idle if it still has a problem.

 

the oil doesn't matter.

it sounds like you have a vacuum leak somewhere. find the hissing noise and fix it.

and yeah ditch the turbo timer and read the FAQ thread stickied here in the forum